sum=0
a=[36.4,4.7,24.2,20.5,2.95,3.2,0.96,0.64,23,2.46,2.6,10.98,23.75,7.65,12.98,7.99,2.09,8]
n=len(a)
for i in range(n):
    sum+=a[i]
print(sum)
